Categories > Ray Optics and Optical Instruments > Prism Theory & Dispersion of Light > Angle of prism is A and its one surface is silvered. Light rays falling at an angle of incidence 2A on first surface return back through the same path after suffering reflection at second silvered surface. Refractive index of the material of prism is

Ray Optics and Optical Instruments

Question: Angle of prism is A and its one surface is silvered. Light rays falling at an angle of incidence 2A on first surface return back through the same path after suffering reflection at second silvered surface. Refractive index of the material of prism is


1) $2 \sin A$
2) $2 \cos A$
3) $\frac{1}{2}\cos A$
4) $ an A$
Solution: Explanation: No Explanation
Prism Theory & Dispersion of Light

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